Guides / Glossary
Glossary
What is a color region puzzle?
A color region puzzle (also called a queens or crowns puzzle) is a logic grid game. The board is split into irregular colored areas. Your job is to place crowns so every constraint is satisfied at once — not by guessing.
The idea in one sentence
Put exactly one crown in each row, each column, and each color, and keep crowns from touching — even on a corner.
Why the colors matter
Colors are not decoration. Each connected color is one region. If a region is a skinny snake of five squares, exactly one of those five gets a crown. That couples with the row/column rules the way a Sudoku digit couples boxes and lines.
Where Coronet fits
Coronet is a daily color-region puzzle at coronet.one. Today is free and the same for everyone (UTC). Optional Unlock All adds archive dailies, unlimited hints, and expert practice sizes.